/Engine/Source/Editor/PropertyEditor/Public/IPropertyTypeCustomization.h
Called when the children of the property should be customized or extra rows added
void CustomizeChildren ( [TSharedRef](API\Runtime\Core\Templates\TSharedRef)< [IPropertyHandle](API\Editor\PropertyEditor\IPropertyHandle) > PropertyHandle, [IDetailChildrenBuilder](API\Editor\PropertyEditor\IDetailChildrenBuilder) & ChildBuilder, [IPropertyTypeCustomizationUtils](API\Editor\PropertyEditor\IPropertyTypeCustomizationUtils) & CustomizationUtils )